Simple Histogram: Generate an image with an histogram from data

This package is meant to generate a graphic image that represents an histogram from a given set of data values in an array.

It can draw a graph of bars with the supplied values, with a specified with and height, with optional horizontal and vertical axis scales and labels and the possibility of choosing the colors of the background and the axis labels. The colors of the bars are picked by the class automatically.

The graph image is created in true color and outputted in the PNG format using the PHP GD extension.

The class generate HTML IMG tags with the SRC attribute pointing to an URL based on the current script URL that passes the necessary parameters to the class to output the image graphic in the PNG format.